This thread contains a compilation of informative and useful threads on PvP.

General Guides and Information

[PvP-guide] Alterac Valley - by Martenus http://eu.battle.net/wow/en/forum/topic/859137558
[PvP-guide] Arathi Basin - by Dalrian http://eu.battle.net/wow/en/forum/topic/1622863577
[PvP-guide] Eye of the Storm - by Worgandexter http://eu.battle.net/wow/en/forum/topic/1415207852
[PvP-guide] Strand of the Ancients - by Gismokvack http://eu.battle.net/wow/en/forum/topic/900641177
[PvP-guide] Gaining Arena Rating - by Dalrian http://eu.battle.net/wow/en/forum/topic/1820952130
[PvP-guide] Proper PvP Keybinding - by Lythox http://eu.battle.net/wow/en/forum/topic/2064227757
[PvP-guide] The Battle for Gilneas - by Gismokvack http://eu.battle.net/wow/en/forum/topic/1776523347
An explanation of the Conquest Cap in season 10 - by Dalrian http://eu.battle.net/wow/en/forum/topic/2358726310